I am a REAL NOVICE who just upgraded to BB 2017. I had created a tune in 2016 and had used the SJAZZC2 style. When I played back this same saved file in 2017, there is NO keyboard (electric piano). All I hear is bass and drums. This is very upsetting since I spent several hours last night prior to the upgrade working on this song and now I hear NO Keys and I have rehearsal with my duo in a few hours. Any assistance would be GREATLY appreciated!